Austrac deputy chief executive Alexandra Oliver has joined a growing cohort of Sydney home owners cashing in on soaring land values driven by the NSW government’s housing reforms, selling her Double Bay property as part of a $50 million amalgamated site deal to developer JZL.

The site is expected to yield up to 40 luxury residences, replacing the two semi-detached homes – each with a pool – that occupy neighbouring properties on Henrietta Street.